Movable form for concrete construction



Angus, 192s.

- C. M. ALLEY MOVABLE FORM FOR COflCRETE CONSTRUCTION Filed March 1'! 1924 H501 mu; 4.

4 Sheets-Sheet 1 '02 C. M ALLL Y AdgilB, 1925.

I c. M. ALLEY MOVABLE FORM FOR CONCRETE CONSTRUCTION Filed March 17, 1924 4 Sheets-Sheet 5 Qwuento'u C/ IAA L [r Aug. 18, 1925.

. C. M. ALLEY MOVABLE FORM FOR CONCRETE CONSTRUCTION 4 Shegts-Sheet 4 gwwwtoo @AZALLEY Filed March 1'7 1924 Patented Aug. 14%, 1925.

UNITE!) CHAR-LES M. ALLEY, 0F UPPER, LAKE, CALIFORNIA.

MOVABLE FOR v1 FOB, CONCRETE GO'NSTRUGTIGW Application. filed March 17, 1924;.

To all whom it may concern:

Be it known that I, CrrAnLns M. ALLEY, a citizen of the United States, and a resident of Upper Lake, county of Lake, State of California, have invented new and useful Movable Forms for Concrete Construction, of which the following is a specification.

This invention relates to concrete wall and building construction and has to do with a new system of erecting and moving the forms into which the walls are poured, as well as the detailed construction of the form and associated elements in order to carry out the system.

The principal objects of my invention are to provide a system of concrete wall forms in sectional form which can be removed from finished portions of the wall and applied to the upper edge thereof for pouring a cone tinuation of the wall, also such forms in combination with a certain scaffold having atrack from which the forms and wall are aligned to insure a perfectly vertical wall, and for suspending the forms and providing for constructing the wall entirely from one side thereof, and further providing for a quick shifting of the forms to progressivel build the wall, and further providing for forming hollow walls through means of removable cores, also for reinforcing of the walls, and all the above in a comparatively simple equipment easily handled by one man if necessary through easily manipulated artifices for, aligning, clamping or removing the forms, cores, etcetera, and as will appear from the following description.

Before referring to the drawings accompanying this specification, it might be well to briefly outline the invention as a method of constructing a wall of concrete which comprises first erecting a building scaffold parallel to the desired wall on one side on y thereof, of placing a plank on edge on the outside of the scaffold supported on the ledger members so as to form a track aligned with the desired wall, of hanging a plurality of straight bars or poles (hangers) from the track and from which hangers the wall forms are suspended or aligned between the rising wall and the track above.

The hangers act as straight edges or plumb lines between the aligning track and the rising wall, and may be of considerable length Serial No. 598,880.

suspended from a track at the top of the scafiold, or they may be about a storys height in length and the track member elevated from story to story as the wall progresses.

Certain clamps are provided for holding the forms in place, and certain sheet metal cores to drop into the forms to produce an aligned series of hollows or flues in the wall for forming the so-called hollow wall construction.

In the drawings, Figure l is a fragmentary perspective representation of a concrete wall in process of erection by my seat fold and wall form combination and it also shows a new form section and its cores aligned over the position they will assume when dropped in place.

Figure 2 is a perspective representation showing a method of forming corner junc tures of the walls by the use of vertically arranged mold forms aligned by the tracl and Figure 3 is a plan thereof along the line 33.

Figure f is a sectional elevation of the scaffold showing a hanger suspended from the track and clamped to a form section complete with its cores and in position over the finished portion of the wall below.

Figure 5 is a portion of a similar section to that shown in Figure 4 showing the hanger disconnected and swung away from the form, the cores partly drawn and the form released from the hardened wall.

Figures 6 and 7 are enlarged details of the sheet metal core construction; Figure 6 showing the cores attachment to the slanted roof which guides the concrete into the space on either side of the cores; and

Figure 7 shows the shape of the corrugated core as seen from the end. Figure 8 shows spaced cores from one roof.

In the drawings (1) designates the scaffold uprights, (2) the ledger members, (3) the foot planks, (at), the track referred to and which is a plank placed on edge supported by the ledger members, and which plank is preferably a 2X6 or some size which can be used for the top plate on the wall when finished.

This'plank should be straight, as it forms the line which determines the truth of the wall. The scaffold and its track should follow the course of the wall around the building and also along any partition walls.

The hangers are shown at suspended from the track by a hook (6) and preferably with a roller ('2) interposed so that the hanger may easiy be moved along to the position desired.

The hook member is in the form of a strap hinge with its pivot point at and is secured to the hanger below the hinge joint and is free above the oint so that the hanger may be swung away from the wall as shown in Figure for rolling it along or easier removal.

The concrete wall is shown at (9) rising entirely beyond the scaffold and hangers and is poured in courses around the building, each course or portion thereof being held in sectional forms until suliiciently set to permit the removal of the forms to a new position.

The forms are positioned over the finished portion of the wall overlapping it about a half inch and are clamped to the hangers so that they will be aligned with the track and the wall will rise in vertical plane. The track, is, of course, set over to allow for the thickness of the hangers and the form sides.

At (10) is shown one of the form sections in position on the upper edge of the finished part of the wall and at B in the drawing i's-indicaited a: form in space as though being lowered on the wall to connect with the other section.

Any material may be used for the forms and they may be of any size, but I prefer the form sections to be about one foot high by four feet long. made of two wooden sides with vertical cleats (11) secured to the outer sides and with metal tie straps (12) spacing the two sides at the upper edges secured by bolts (13) to the cleats. The right end cleats project to overlap the left end of abutting forms to align them.

lVhen the forms are in place they are clamped at the lower edges to the wall by by means of tapered tie bolts (14) which pass through the cleats and rest on the lower course of the wall, and which may easily be knocked out of the new portion of the wall when set.

Sliding sheet metal sleeves (15) are arranged on the hangers (5) and each sleeve has a special wing bolt (16) above and below the form side adapted to clamp it to the sleeve. These bolts have a. thin head (17) in the form of an arc segment so that by a fractional turn of the bolt the head will overlie or clear the inner surface of the form side. The sleeves are provided each with a suitable lever clamp (18) to hold the sleeve to the hanger with the form suspended preparatory to lowering it into place and a sliding collar (19) is provided to limit the lowering of the sleeve to any desired point.

At the lower end of each hanger is a suitable block (28) to properly space it from the finished wall to allow for the thickness of the form sides and sliding sleeve.

When hollow walls are wanted, core forms (20) are suspended within the wall forms. These cores are preferably of sheet metal and are vertically corrugated to form ribs in the concrete or they are arranged in groups of three, each spaced for a couple of inches of concrete between them as indicated in Figure 8, and are secured together at the upper ends by a double slanted roof (37) so that wet concrete poured on top will be guided to both sides of the forms.

The cores are long enough to project about a half inch into the core spaces of the wall below and are tapered slightly at the end for this purpose. At the upper end the cores are centered by the slanted roof resting on wire guides (22) projecting above the tie straps and are easily pulled by means of wire loop handles which extend loosely through the roof, and hook to toggle plate levers (38) pivoted to opposite inner walls of the cores as shown in Figures 6 and 7 so that when the handles are pulled the walls collapse at the bottom, the end walls being split and overla 'iping as indicated at (39) to permit of this.

In Figure 6 the juncture of the roof (37) and core walls is shown, the flaps (25) being bent down against the roof and soldered.

Figure 7 shows the shape of the corrugated core as seen from the lower end. This corrugated core results in an internally ribbed and stronger wall, but of course any shape of core may be used or the cores may be in groups of two or three as shown in Figure 8, or the cores may be omitted altogether when a solid wall is wanted.

In Figure 1 at C, D, and E are shown the cores as if todescend vertically into their respective positions C, D, and E.

In filling the forms, working from right to left in Figure 1, the concrete is left with a sloping end as indicated at (26) so that it will tie properly to the next section. The 1 cores are usually pulled, in from half an hour to an hour after pouring and the form may be removed in twenty four hours.

Figure e shows the taper tie bolts (14) of the form resting on the section of finished wall below.

in account of the resiliency of the tie straps no difficulty is experienced in releasing the sides of the form sections from the concrete as they may readily be sprung apart as shown in Figure 5.

My sectional form system lends itself nicely to reinforce construction, it merely being necessary to insert rods in the spaces between the cores and sides, and preferably at reversed angles as indicated at Figure 1.

In building a wall by my system the windew and door frames are installed as the wall is formed or rough frames are installed instead, the same in thickness as the walls so the form sections can lap over the frame, also in certain angular walls or oflsets the forms if of Wood may easily be cut to fit any special conditions, or to join other forms at the corners of walls.

It should be observed that after the ground course is laid, no level, square, or line is needed as the hangers act as a plumb and the track as a line insuring a true vertical wall.

In Figures 2 and 3 a simple met 10d 0 aligning the sectional forms at the corner of walls or at the corners of an abutting partition wall is shown. In these views the elements described are designated by the numerals already given and the outside or at the abutting corners a special vertical form (29) is arranged to effect juncture of the regular or standard wall forms (10).

The special forms consist of s leer sides, preferably boards, with spaced create (11) secured to their outer sides and through which the tapered tie bolts (14) e:-:tend as explained for the regular form sections. These special forms are secured to the tinished wall below and are aligned vertically by being nailed or clamped to the tract One set of wall forms may abut. these vertical forms as shown and the other may pass it and have a side opening (31) cut to meet the space between the vertical sides of the special form, or in the case of outside walls, the inner side only of the standard form is shortened as at to meet one side of the special form, and the other side of the special form is made wider as shown at (33) to pass the wall and join the outer side of the standard form.

My method of aligning and suspending the window or door frames from the track is shown in Figure 2 where (34) is a door frame suspended from the tract and projecting into and through a wall form. The frame is suspended by a board or boards (35) and braced by an angularly arranged board or boards In Figure 2 the scaffold and track hangers have been omitted for the salts of clarity.

While I have not unnecessarily lengthened this specification by a description of the foundation course it is evident from what has been said that the foundation may be poured in any style of form or a suitably widened or battered modification of my standard forms.

Having thus described my invention, it will be evident to any mechanic that many modifications may be made in the details for carrying it out and any such as 'fall within the spirit of my invention are intended to be covered in my appended claims.

I claim:

1. Concrete wall construction comprising a horizontally disposed elevated member aligned with the wall and bars depending from the member outside of the wall adapted for aligning the wall upward therewith as the wall is built.

2. Concrete wall construction comprising a horizontally disposed elevated member aligned with the wall, moulding forms for casting the wall, and bars depending from the elevated member outside of the well adapted for ali ning the forms upward therewith in casting the wall therein.

3. Concrete wall construction comprising a horizontally disposed elevated track supported on scaffold along one side of the wall, and means depending from the track adapted for aligning the wall upward therewith as the wall is built.

4t. Concrete wall construction comprising a horizontally disposed elevated member aligned with the wall supported on a scaffold at one side of the wall only, moulding terms for casting the *all, and means depending from the elevated member adaoted for alien ing the forms upward therewith in casting the wall therein.

1. Concrete wall construction comprising ly disposed elevated track supported on a. scaliold at one side of the wall, moulding forms for casting the wall sup ported and aligned by devices depending from the track and slidable therealong.

6. Concrete wall construction comprising a horizontally disposed elevated bean-i supported on a scalliold one side of the wall bars hanging down from beam, and sectional forms for casting the wall supported by said bars and aligned to the beam thereby.

7. Concrete wall construction comprising a horizontally disposed elevated beam supported on a scaffold at one side of the wall, bars hanging down from said beam, and sectional forms for casting the wall supported by said bars and aligned to the beam thereby, said bars being clamped at their lower ends to the wall.

8. In the construction of a concrete wall, vertically arranged rigid aligning members supported from above, sectional casting forms associated with the membes and means for adjustably clamping the forms to the members.

9. In the construction of a concrete wall, an elevated track parallel to the wall, wall aligning poles or bars hanging from said track, sectional forms for casting the wall, and means for clamping the forms to the poles or bars.

10. In the construction of a concrete wall,

an elevated track parallel to the wall, wall aligning poles or bars hanging from said track and supported for rolling along the track, sectional forms for casting the wall, and means for clamping the forms to the poles or bars.

11-. In the construction of a concrete wall, an elevated track parallel to the wall, wall aligning poles or bars hanging from said track, sectional terms for casting the wall, and means for clamping the forms to the poles or bars, said poles or bars being hinged adjacent their suspension to the track for swinging away from the wall.

12. In the construction of a concrete wall, an elevated track parallel to the wall, wall aligning poles or bars hanging from said track. sectional terms for casting the wall, and means for clamping the forms to the poles or bars, said means comprising slidable sleeves on the poles or bars with devices for clamping the forms thereto.

13. A concrete wall sectional casing form comprising two spaced side members connected together by tie members along one edge and a series of hollow wall cores adapted to be suspended within the iorm supported on said tie members and means on said tie members for centering the cores relative to the sides.

14L. A concrete wall sectional casting form comprising two spaced side members connected together by tie members along one edge and a series of hollow wall cores adapted to be suspended within the form supported on said tie members, said cores having a slanted root plate to guide the concrete to the inner side of the form.

15. A concrete wall sectional casting form comprising two spaced side members con nected together by tie members along one 17. in the construction of a concrete wall,

an elevated track parallel to the wall, wall aligning poles or bars hanging from said track, sectional forms for casting the wall, and means for clamping the forms to the poles or bars, said means comprising slidable sleeves on the poles or bars with bolts carried thereby having fiat circular segment heads adapted upon turning to engage the forms at spaced points thereon.

18. In concrete building wall construction, sectional wall tor-ms adapted for assembling horizontally for molding the wall, and means for molding the corners of the walls comprising intermediate vertically disposed wall forms extending the height of a story of the wall and open to the horizontal sectional forms.

19. In concrete building wall construction, sectional wall forms adapted for assembling horizontally for molding the wall, and means for molding the corners of the walls comprising. intermediate vertically disposed wall forms, and a track elevated above the wall aligning the upper ends of the intermediate vertical forms.

CHARLES M. ALLEY. 

